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$109+ Cheap flights from Trenton, NJ to San Francisco (TTN - SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SFO
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheap flight deals from Trenton to San Francisco

Cheapest flights from Trenton to San Francisco
Explore the most affordable flight options available from Trenton to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.

This Expedia deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:31 pm
TTN
-
SFO
1 stop17h 10m
Frontier
Thu 5/288:44 pm
SFO
-
TTN
1 stop20h 02m
Frontier
Deal found 3/20$250
This Expedia deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2010:22 am
TTN
-
SFO
1 stop27h 19m
Frontier
Mon 5/258:44 pm
SFO
-
TTN
1 stop9h 58m
Frontier
Deal found 3/20$256
This CheapOair deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2210:27 am
TTN
-
SFO
1 stop27h 14m
Frontier
Wed 5/278:44 pm
SFO
-
TTN
1 stop20h 02m
Frontier
Deal found 3/19$261
This CheapOair deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3110:27 am
TTN
-
SFO
1 stop27h 14m
Frontier
Sun 6/78:44 pm
SFO
-
TTN
1 stop9h 58m
Frontier
Deal found 3/22$266
This Expedia deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2210:27 am
TTN
-
SFO
1 stop27h 14m
Frontier
Sun 5/318:44 pm
SFO
-
TTN
1 stop9h 58m
Frontier
Deal found 3/22$270
This Orbitz deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2210:27 am
TTN
-
SFO
1 stop27h 14m
Frontier
Mon 5/258:44 pm
SFO
-
TTN
1 stop9h 58m
Frontier
Deal found 3/20$273
This Trip.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2110:27 am
TTN
-
SFO
1 stop27h 14m
Frontier
Tue 5/268:44 pm
SFO
-
TTN
1 stop9h 53m
Frontier
Deal found 3/20$281
This Orbitz deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:33 pm
TTN
-
SFO
1 stop16h 56m
Frontier
Mon 8/38:51 pm
SFO
-
TTN
1 stop19h 57m
Frontier
Deal found 3/20$290
This Expedia deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:50 pm
TTN
-
SFO
1 stop16h 51m
Frontier
Tue 6/28:44 pm
SFO
-
TTN
1 stop9h 53m
Frontier
Deal found 3/20$311
This Frontier deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/238:50 pm
TTN
-
SFO
1 stop16h 51m
Frontier
Wed 5/278:44 pm
SFO
-
TTN
1 stop9h 58m
Frontier
Deal found 3/18$315
This Expedia deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:31 pm
TTN
-
SFO
1 stop17h 10m
Frontier
Sun 6/78:44 pm
SFO
-
TTN
1 stop9h 58m
Frontier
Deal found 3/17$327

Find flight deals from Trenton to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Trenton (TTN) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$250
(Expedia)

One-way from

$109
(Super.com)

Popular in

December

Cheapest in

January

Average price

$399
Provider with most accurate pricing for Trenton-Mercer-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Trenton-Mercer-San Francisco flights.
Search Deals
From Trenton-Mercer to San Francisco
Search Deals
One-way flight from Trenton-Mercer to San Francisco
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Trenton to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 22, 2026.
Use the filters below to find and compare flights from Trenton to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Mon 8/3

8:33 pm-10:29 am

1 stop16h 56m

San Francisco

Mon 8/10

8:51 pm-9:47 am

1 stop9h 56m

$250

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Fri 5/22

10:27 am-10:41 am

1 stop27h 14m

San Francisco

Tue 5/26

8:44 pm-9:37 am

1 stop9h 53m

$250

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Thu 5/28

8:31 pm-10:41 am

1 stop17h 10m

San Francisco

Sun 5/31

8:44 pm-9:42 am

1 stop9h 58m

$250

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Thu 5/21

10:27 am-10:41 am

1 stop27h 14m

San Francisco

Sat 5/23

8:44 pm-9:42 am

1 stop9h 58m

$335

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Thu 5/21

10:27 am-10:41 am

1 stop27h 14m

San Francisco

Tue 5/26

8:44 pm-9:37 am

1 stop9h 53m

$335

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Fri 8/14

8:33 pm-10:29 am

1 stop16h 56m

San Francisco

Thu 8/27

8:51 pm-7:48 pm

1 stop19h 57m

$355
Quickest round-trip

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sat 5/23

8:50 pm-10:41 am

1 stop16h 51m

San Francisco

Mon 5/25

8:44 pm-9:42 am

1 stop9h 58m

$355

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sat 5/23

8:50 pm-10:41 am

1 stop16h 51m

San Francisco

Fri 5/29

8:44 pm-9:42 am

1 stop9h 58m

$355

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sat 8/22

10:32 am-10:29 am

1 stop26h 57m

San Francisco

Wed 9/2

8:51 pm-7:48 pm

1 stop19h 57m

$355

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sat 8/15

8:33 pm-10:29 am

1 stop16h 56m

San Francisco

Sun 8/23

8:51 pm-7:48 pm

1 stop19h 57m

$355

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/21

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Trenton to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Trenton to San Francisco in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Trenton, New Jersey-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Trenton, New Jersey-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Trenton, New Jersey-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Trenton, New Jersey-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Trenton, New Jersey-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Trenton to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Trenton with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Trenton to San Francisco

What is the cheapest month to book a flight from Trenton, New Jersey to San Francisco?

Currently, December is the cheapest month in which you can book a flight from Trenton, New Jersey to San Francisco (average of $113). Flying from Trenton, New Jersey to San Francisco in May is currently the most expensive (average of $193). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Trenton to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Trenton, New Jersey to San Francisco?

    A quick flight from Trenton, New Jersey to San Francisco can take about 16h 56m. Frontier provides one of the quickest options available for as low as $250. Trenton, New Jersey and San Francisco are separated by a distance of 2530 mi.

  • Can I find deals for flights from Trenton to San Francisco that include hotel bookings?

    Yes. In addition to deals on Trenton to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Trenton to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Trenton to San Francisco.

  • Can I find deals for business class flights from Trenton to San Francisco?

    Yes. Cheapflights offers flight deals from Trenton to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Trenton, New Jersey to San Francisco?

    Currently, December is the cheapest month in which you can book a flight from Trenton, New Jersey to San Francisco (average of $113). Flying from Trenton, New Jersey to San Francisco in May is currently the most expensive (average of $193). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Clara
Santa Cruz
Livermore
Roseville
Watsonville
Rancho Cordova
San Bruno
San Ramon
Sunnyvale
Vacaville
San Carlos
Redwood City
Turlock
San Lorenzo
Davis
Manteca
Union City
Elk Grove
Rohnert Park

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